Figure 1: WT1 protein in urinary exosomes of diabetic patients. Representative immunoblots for WT1 in urinary exosome samples from (A) type 1 diabetic subjects (S1-S5) patients without proteinuria at the time of enrollment and (B) type 1 diabetic patients (P1-P3) with proteinuria. All exosomal preparations showed specific band for exosomal marker proteins, Alix and TSG101.